NCLEX RN Free Practice Questions Practice Question
A client is admitted to the emergency department with a loss of consciousness with unknown etiology. The nurse expects to perform which laboratory test to assist in determining etiology?
Correct Answer: C
Rationale: Serum glucose is critical to rule out hypoglycemia or hyperglycemia as causes of unconsciousness. Cholesterol (A), alkaline phosphatase (B), and urinalysis (D) are less urgent.
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